C#中常用的分頁預存程序小結

表中主鍵必須為識別欄位，[ID] int IDENTITY (1,1)//每次自增一
1.分頁方案一：(利用Not In和SELECT TOP分頁)
語句形式： 複製代碼 代碼如下:SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 20 id
FROM TestTable
ORDER BY id))
ORDER BY ID

SELECT TOP 頁大小 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 頁大小*頁數 id
FROM 表
ORDER BY id))
ORDER BY ID

2.分頁方案二：(利用ID大於多少和SELECT TOP分頁）
語句形式： 複製代碼 代碼如下:SELECT TOP 10 *
FROM TestTable
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 20 id
FROM TestTable
ORDER BY id) AS T))
ORDER BY ID

SELECT TOP 頁大小 *
FROM TestTable
WHERE (ID >
(SELECT MAX(id)
FROM (SELECT TOP 頁大小*頁數 id
FROM 表
ORDER BY id) AS T))
ORDER BY ID

3.分頁方案三：(利用SQL的遊標預存程序分頁) 複製代碼 代碼如下:create procedure SqlPager
@sqlstr nvarchar(4000), --查詢字串
@currentpage int, --第N頁
@pagesize int --每頁行數
as
set nocount on
declare @P1 int, --P1是遊標的id
@rowcount int
exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1, @rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) as 總頁數--,@rowcount as 總行數,@currentpage as 當前頁
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize
exec sp_cursorclose @P1
set nocount off

4. 複製代碼 代碼如下:CREATE Procedure FramWorkPage
@TableName varchar(50), --表名
@Fields varchar(5000) = '*', --欄位名(全部欄位為*)
@OrderField varchar(5000), --排序欄位(必須!支援多欄位)
@sqlWhere varchar(5000) = Null,--條件陳述式(不用加where)
@pageSize int, --每頁多少條記錄
@pageIndex int = 1 , --指定當前為第幾頁
@TotalPage int output, --返回條數
@OrderType bit -- 設定排序類型,1 升序 0 值則降序
as
begin
declare @strOrder varchar(400) -- 排序類型

Begin Tran --開始事務
Declare @sql nvarchar(4000);
Declare @totalRecord int;
--計算總記錄數
if (@SqlWhere ='''' or @SqlWhere='' or @sqlWhere is NULL)
set @sql = 'select @totalRecord = count(*) from ' + @TableName
else
set @sql = 'select @totalRecord = count(*) from ' + @TableName + ' where ' + @sqlWhere
EXEC sp_executesql @sql,N'@totalRecord int OUTPUT',@totalRecord OUTPUT--計算總記錄數

--計算總頁數

select @TotalPage=@totalRecord --CEILING((@totalRecord+0.0)/@PageSize)

if @OrderType = 0
begin
set @strOrder = ' order by [' + @OrderField +'] desc'
--如果@OrderType是0，就執行降序，這句很重要！
end
else
begin
set @strOrder = ' order by [' + @OrderField +'] asc'
end

if (@SqlWhere ='''' or @SqlWhere='' or @sqlWhere is NULL)
set @sql = 'Select * FROM (select ROW_NUMBER() Over( '+@strOrder+' ) as rowId,' + @Fields + ' from ' + @TableName
else
set @sql = 'Select * FROM (select ROW_NUMBER() Over( '+@strOrder+' ) as rowId,' + @Fields + ' from ' + @TableName + ' where ' + @SqlWhere
--處理頁數超出範圍情況
if @PageIndex<=0
Set @pageIndex = 1

if @pageIndex>@TotalPage
Set @pageIndex = @TotalPage

--處理開始點和結束點
Declare @StartRecord int
Declare @EndRecord int

set @StartRecord = (@pageIndex-1)*@PageSize + 1
set @EndRecord = @StartRecord + @pageSize - 1

if @OrderType = 0
begin
set @strOrder = ' order by rowid desc'
--如果@OrderType是0，就執行降序，這句很重要！
end
else
begin
set @strOrder = ' order by rowid asc'
end
--繼續合成sql語句
set @Sql = @Sql + ') as ' + @TableName + ' where rowId between ' + Convert(varchar(50),@StartRecord) + ' and ' + Convert(varchar(50),@EndRecord) + ' '+@strOrder
-- print @sql
Exec(@Sql)
---------------------------------------------------
If @@Error <> 0
Begin
RollBack Tran
Return -1
End
Else
Begin
Commit Tran
Return @totalRecord ---返回記錄總數
End
end

通過上面這些東西的學習。我想一定可以找到一種滿意的答案。。。